Add GL_CHROMIUM_texture_mailbox entrypoints to wgc3d implementations

webkit/gpu/webgraphicscontext3d_in_process_impl.cc

Index: webkit/gpu/webgraphicscontext3d_in_process_impl.cc
diff --git a/webkit/gpu/webgraphicscontext3d_in_process_impl.cc b/webkit/gpu/webgraphicscontext3d_in_process_impl.cc
index 14701c3bf5ea9b03d3409b40e72b2b56df09b3a0..6decabf44ec26b556224754ab20e10ea6dbabd4d 100644
--- a/webkit/gpu/webgraphicscontext3d_in_process_impl.cc
+++ b/webkit/gpu/webgraphicscontext3d_in_process_impl.cc
@@ -752,6 +752,21 @@ void WebGraphicsContext3DInProcessImpl::bindUniformLocationCHROMIUM(
   NOTIMPLEMENTED();
 }
 
+void WebGraphicsContext3DInProcessImpl::genMailboxCHROMIUM(
+    WGC3Dbyte* mailbox) {
+  NOTIMPLEMENTED();
+}
+
+void WebGraphicsContext3DInProcessImpl::produceTextureCHROMIUM(
+    WGC3Denum target, const WGC3Dbyte* mailbox) {
+  NOTIMPLEMENTED();
+}
+
+void WebGraphicsContext3DInProcessImpl::consumeTextureCHROMIUM(
+    WGC3Denum target, const WGC3Dbyte* mailbox) {
+  NOTIMPLEMENTED();
+}
+
 WebString WebGraphicsContext3DInProcessImpl::
     getRequestableExtensionsCHROMIUM() {
   return WebString();